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3 years ago

Are they all right? If not please tell me what the answers are. Thanks! (Math)

Mathematics

2 answers:

MAXImum [283]3 years ago

4 0

Answer:

yes

Step-by-step explanation:

They are absolutely correct. Good Job

Lesechka [4]3 years ago

4 0

I believe they’re all correct. I hope u get a good grade

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Round $26.472 to the nearest cent

ella [17]

$26.47 is the answer. You can not have .472 cents when it comes to money. The most decimal places you will have is 2.

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3 years ago

10. Two lighthouses are located on a north-south line.

Kamila [148]

The question is an illustration of bearing (i.e. angles) and distance (i.e. lengths)

The distance between both lighthouses is 5783.96 m

I've added an attachment that represents the scenario.

From the attachment, we have:

$\mathbf{\angle A = 180^o - 120^o\ 43'}$

Convert to degrees

$\mathbf{\angle A = 180^o - (120^o +\frac{43}{60}^o)}$

$\mathbf{\angle A = 180^o - (120^o +0.717^o)}$

$\mathbf{\angle A = 180^o - (120.717^o)}$

$\mathbf{\angle A = 59.283^o}$

$\mathbf{\angle B = 39^o43'}$

Convert to degrees

$\mathbf{\angle B = 39^o + \frac{43}{60}^o}$

$\mathbf{\angle B = 39^o + 0.717^o}$

$\mathbf{\angle B = 39.717^o}$

So, the measure of angle S is:

$\mathbf{\angle S = 180 - \angle A - \angle B}$ ---- Sum of angles in a triangle

$\mathbf{\angle S = 180 - 59.283 - 39.717}$

$\mathbf{\angle S = 81}$

The required distance is distance AB

This is calculated using the following sine formula:

$\mathbf{\frac{AB}{\sin(S)} = \frac{AS}{\sin(B)} }$

Where:

$\mathbf{AS = 3742}$

So, we have:

$\mathbf{\frac{AB}{\sin(81)} = \frac{3742}{\sin(39.717)}}$

Make AB the subject

$\mathbf{AB= \frac{3742}{\sin(39.717)} \times \sin(81)}$

$\mathbf{AB= 5783.96}$

Hence, the distance between both lighthouses is 5783.96 m

Read more about bearing and distance at:

brainly.com/question/19017345

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2 years ago

PLEASE HELP ILL GIVE BRAINLIEST

ella [17]

Answer:

1. The red one

2. 60%

3. 18,57%

Step-by-step explanation:

I use the way to calculate the percentage in question 2 and 3

2. (6:10)x100%

3. (13:7)x100%

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3 years ago

Jake rate 6 dollers per a week or no

Liono4ka [1.6K]

Answer:

A. 6 dollars per week.

Step-by-step explanation:

Because if you look carefully in the graph, you would see that the dot on 1 week is above 5 dollars so therefore, it would be 6 dollars. To check, look at the next dot and see. You will see that the dot above 2 weeks is in the middle of 10 and 15 dollars.

Hope I helped.

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3 years ago

Owen simplified the expression r-8 s-5.<br><br><br>r−8s−5 = 1r8 ⋅ s5 = s5r8

kobusy [5.1K]

r⁻⁸ s⁻⁵

using the rule x⁻ⁿ=1/xⁿ

r⁻⁸ s⁻⁵ = (1/r⁸)(1/s⁵)

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3 years ago

Read 2 more answers

Are they all right? If not please tell me what the answers are. Thanks! (Math)​

Are they all right? If not please tell me what the answers are. Thanks! (Math)